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#ifndef _OPTION_H
#define _OPTION_H
#include <list>
#include <string>
#include <exception>
#include "error.h"
typedef void (*handler_t)(const char * arg);
struct option_t {
const char * long_opt;
char short_opt;
bool wants_arg;
handler_t handler;
bool handled;
};
class option_error : public error {
public:
option_error(const std::string& reason) throw() : error(reason) {}
virtual ~option_error() throw() {}
};
bool process_option(option_t * options, const std::string& opt,
const char * arg = NULL);
void process_arguments(option_t * options, int argc, char ** argv,
const bool anywhere, std::list<std::string>& args);
void process_environment(option_t * options, const char ** envp,
const std::string& tag);
namespace ledger {
class config_t;
class report_t;
extern config_t * config;
extern report_t * report;
#define CONFIG_OPTIONS_SIZE 97
extern option_t config_options[CONFIG_OPTIONS_SIZE];
void option_help(std::ostream& out);
#define OPT_BEGIN(tag, chars) \
void opt_ ## tag(const char * optarg)
#define OPT_END(tag)
} // namespace ledger
#endif // _OPTION_H
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